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Ket [755]
3 years ago
9

3. Tyrone wants to determine how fast a bowling ball travels when it is bowled. He uses a stopwatch to

Physics
1 answer:
SVEN [57.7K]3 years ago
7 0
Meters would be the best way to record the length
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A 57 kg person in a rollercoaster moving through the bottom of a curved track of radius 42.7 m feels a normal force of 995 N. Ho
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Answer:

Use Fc centripetal force as positive and W the weight as negative

N = m v^2 / R + m g

v^2 = (N - m g) R / m

v^2 = (995 - 57 * 9.8) 42.7 / 57 = 327 m^2/s^2

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2 years ago
A sound wave can cause the particles in a medium to vibrate slowly or quickly what is this rate of vibration called?
stealth61 [152]

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FREQUENCY

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3 0
3 years ago
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Un niño empuja una carreta con su perro dentro. La masa del perro y la carreta juntos es de 45 kg. La carreta
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Answer:

The force exerted by the child is 38.25 Newton

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